When price is in an uptrend most new news has a positive or neutral effect. When its in a downtrend, it mostly has a negative or neutral effect.
But its the same with TA. In an uptrend, resistance levels mostly fail or fail to cause a reversal. In a downtrend, support levels mostly fail or fail to cause a reversal.
On a long-term basis, the frequency of unexpected trend reversals is over-stated, though that's not to take away their potential impact if and when they do occur.